Using ionic liquids for extractive distillation Ionic liquid definition issues
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Aspen was used to simulate the extractive distillation of toluene and n-heptane using ionic liquids. The feed rate of toluene and n-heptane mixture was 100 kg/h, and the feed rate of ionic liquid was 100kg/h. It was passable, but when the feed rate of ionic liquid increased to 130kg/h, a warning would appear, as shown in the figure.：
Forgot to mention the question, what the hell is this? Why does the viscosity coefficient need to be 130kg/h? Come and save me quickly.
The interaction parameters of ionic liquids with toluene and n-heptane are already known. Why should we use the viscosity model: L
Does anyone know? Don’t worry {:2_33:}
Have you all taken a break today? Do you have any suggestions?